发明名称 |
Authentification of digital data works using signatures and watermarks |
摘要 |
A method of authenticating a digital data work, to enable its integrity or authenticity to be established, is taught. The method envisages calculating a unique signature for the unaltered work and embedding that signature in some manner back into the unaltered work in a way that actually changes the work itself. |
申请公布号 |
AU7535700(A) |
申请公布日期 |
2001.04.30 |
申请号 |
AU20000075357 |
申请日期 |
2000.09.28 |
申请人 |
SIGNUM TECHNOLOGIES LIMITED |
发明人 |
DAVID HILTON |
分类号 |
G06F1/00;G06F21/64;G06T1/00;G09C1/00;G09C5/00;G10L11/00;G10L19/00;H04L9/32;H04N1/387 |
主分类号 |
G06F1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|